JSON Formatter
Format, validate, and prettify messy JSON data.
JSON Formatter & Validator
Format, validate, minify and safely query JSON in your browser.
Input JSON
Supports dot properties, numeric indexes and quoted bracket keys. Code execution and prototype keys are blocked.
Why Use a JSON Formatter?
JSON (JavaScript Object Notation) is a standard text-based format for representing structured data. While APIs often return minified JSON to save bandwidth, this format is difficult for humans to read and debug.
Our JSON formatter takes that compressed data and adds proper indentation, line breaks, and spacing, making the hierarchical structure instantly obvious.
Features
- Validation: Instantly check if your JSON string is syntactically valid.
- Formatting: Prettify minified JSON with customizable indentation (spaces or tabs).
- Privacy: All processing is done locally in your browser. Your data is never sent over the network.
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